host-slicing-settings [Bukobot 3D Printer Instructions & Docs]

====== Host & Slicing Settings ======

These settings are universal, but we recommend using “[[http://www.repetier.com/documentation/repetier-host/|Repetier Host for Windows/Linux/Mac]]” as the host software which also uses the built-in “[[http://slic3r.org/|Slic3r]]” slicing program. You can download {{:bukobot_profiles.zip|starter Slic3r profiles}} here, or make your own. Note that these profiles are pretty conservative, and a well-tuned Bukobot should be able to use them at 150-200% speed.

All numbers are usually in metric millimeters (mm) and temperatures are in (c) celsius unless noted.

===== Global Specs / Settings =====

  * Compatibility: Reprap 5D / Marlin / Sprinter **(250,000 Baud)**
  * Nozzle Diameter: 3mm Filament / 0.35mm extrusion hole
  * Extruders: 1 for all Bukobots except for the Bukobot 8 Duo which has 2
  * X & Y Steps using 15 teeth / 3.18 pitch synchromesh cable 55.99/mm
  * Z Steps for M6 threaded rods: 3200
  * Extruder Steps using Tatsu Drive Gear and 13.6:1 ratio stepper motor: 1260/mm
  * X/Y Travel Speed: 100-200mm/sec (150mm/sec recommended)
  * X/Y Extruding Speeds: Max about 200mm/sec (tested), (100mm/sec average recommended)
  * Extruder Retract Speed: 25mm/minute or less (20mm recommended)
  * Z axis speed: 250mm/minute (4mm/sec) or less (200mm/minute recommended)
  * Build Volume: 200mm X 200mm X 200mm (8" inches cube)
  * Center of platform: X=100mm, Y=100mm

===== Repetier-Host Settings ======

Use the following values for the Printer Settings in Repetier-Host. 

=== Connection ===
  * Baudrate = 250000
  * Stop Bits, Parity, Transfer Protocol, Receive Cache Size, Use Ping-Pong are left as defaults.
=== Printer ===
  * Travel Feed Rate = 9000mm/min (==150mm/s)
  * Z-Axis Feed Rate = 6000mm/min (==100mm/s)
  * Default Extruder Temp = 185
  * Default Heated Bed Temp = 0
  * Number of Extruders = 2 for Duo, 1 otherwise.
  * Select Remove M105 Request from Log.
  * Park Position X=0, Y=200 for 8" build area models or 150 for 6", Z-Min=50. This moves the head to the left, pushes table to front and raises the head a bit - but choose whatever you like.
  * Deselect Go to Park Position after Job/Kill (the Slicer end code settings suggested below already do this)
  * Select Disable Motors after Job/Kill 
  * Other settings are left as default.
=== Printer Shape ===
  * Printer Type: Classic Printer
  * XMin = 0, XMax = 275 for Duo or 200 for single extruder 8" model or 150 for 6" model, BedLeft = 0
  * YMin = 0, YMax = 200 or 150 (for 8" or 6" model), BedFront = YMax value.
  * Print Area Width/Depth/Height: 200 for 8" model, 150 for 6" model
Note: the XMin and YMin values assume you have adjusted the X & Y endstops so that they trigger when the extruder is level with the corresponding edge of the print area. For a Duo you should be looking at the right-hand extruder for the X endstop adjustment.
=== Advanced ===
  * Can be left as default.

===== Slicer Settings ======

==== Recommended G-Codes ====

=== START CODE ===

<code>G28 - homing</code>

=== END CODES ===

<code>M104 S0; Turns off heaters

G1 X0 Y150; Homes X axis and brings object to the front

M84; Disables all motors</code>

==== Recommended Filament Settings ====

Filament: 2.87mm average, range of 2.80mm - 3.00mm will vary with filament color / batch

==== Hot End (Extruder) Temperatures ====

  * PLA (Diamond Age / Printbl.com): 185c average, some colors may need more or less up to 200c
  * PLA (Ultimachine, others): 200c average, some colors may need more or less up to 210c or so.
  * ABS: Between 210-230c with 220 average for most colors

==== Platform Temperatures ====
  * PLA: With Kapton tape or clean glass 60c
  * PLA: With Blue Masking tape 0c (room temperature)
  * ABS: With Kapton Tape 110c, if still doesn’t stick well, try up to 120c.


==== Quality Settings ====

//Note: Most settings will depend greatly on the objects being printed but these are recommended as a starting point.//

First layer height should always be 0.3mm (for better platform adhesion)
  * fast printing use 0.3mm
  * Good quality 0.2mm
  * High detail: 0.1mm or 0.05mm

Raft/Brim: Usually not needed, but may depend on object.

Fill: Recommended minimum of **3 solid layers** and **2 perimeters** (shells) for good results.

==== Filament Cooling ====

PLA usually does not need a fan for cooling, but it will help produce better results and faster prints for small parts, bridging and details.

  * Install a fan duct to add cooling for PLA (like example image)
  * Use software to slowdown print:
     * Min layer time: 20 seconds
     * Minimum Speed: 10mm/sec
 
ABS should not be cooled with a fan, but should use the same settings as PLA to slow down the printing when doing very small areas or parts
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